Which event below was the start of World War I?

A. Wilson's Fourteen Points
B. Sinking of the Lusitania
C. Zimmerman Telegram
D. Assassination of Archduke of Austria-Hungary



Answer :

Final answer:

The assassination of Archduke Franz Ferdinand was the spark that ignited World War I.


Explanation:

The event that marked the start of World War I was the assassination of Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, in 1914.

This event led to a chain of events that eventually escalated into a global conflict involving major powers.

The Sinking of the Lusitania, Zimmerman Telegram, and Wilson's Fourteen Points were significant events during the war but not the direct cause of its outbreak.


Learn more about World War I here:

https://brainly.com/question/41436193


Answer: D. Assassination of Archduke of Austria-Hungary

Explanation:

The assassination of Archduke Franz Ferdinand on June 28, 1914, was the main event to start World War 1. The suspect was traced back to a Serbian extremist group that was trying to break up the Austria-Hungary empire and increase Serbian power.